[isoos]

I believe as long as a technology is truly open source, you can fork, build and use it independently, your risk is minimal - be it Dart or any of its alternatives. Worst case: you have a stack that can operate for several years, long enough time for a business product to get migrated. If it is hobby project, you may be compelled to explore a new tech stack soon enough anyway.

As I mentioned in my longer post, I have considered alternatives. Dart's position was strengthened because the code analyzer is very advanced and easy to use. On the low-probability scenario where Dart development would cease, and I'm left with an important Dart codebase, I would have good chances that I could automatically transpile most of my app to a new stack (assuming I'm using enough type annotations).

However, as I follow Dart development and community closely, I believe there is very little risk of getting it abandoned anytime soon.